Today, the strategic goal of the White House is to control the mechanisms of global governance including the European one. However, its main strategy has not always been like this. The beginning of the U.S. and European relations was characterized by the U.S. policy of isolationism which is outlined in the Monroe Doctrine. Further international challenges forced the U.S. government, despite some disapproval of the Americans, to join the European affairs. This shift eventually led to military, economic and security assistance to the countries of Europe. Modern global problems also require close U.S.-European cooperation, which is not always straightforward.